| CAS No. | 51748-05-1 |
| Molecular Formula | C6H14ClO2PS |
| Molecular Weight | 216.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
O-Ethyl S-sec-Butyl Thiophosphoryl Chloride (CAS 51748-05-1), molecular formula C6H14ClO2PS and molecular weight 216.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H14ClO2PS, O-Ethyl S-sec-Butyl Thiophosphoryl Chloride contains a sulfone group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 216.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C6H14ClO2PS |
| Molecular Weight | 216.67 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |